That was a good write up but reading through your post I have a feeling that something is left out and this is what I think should be added.

HOW TO PREVENT GREY HAIR.
Lack of Vitamin B12 causes prematurely greying hair. You can have a good and healthy hair colour by consuming lots of poultry, eggs, cheese, milk and seafood.

But just so you should know, it is believed that grey hair symbolizes wisdom.